加速度傳感器中有一種是三軸加速度傳感器，同樣的它是基于加速度的基本原理去實現(xiàn)工作的，加速度是個空間矢量，一方面，要準(zhǔn)確了解物體的運動狀態(tài)，必須測得其三個坐標(biāo)軸上的分量；另一方面，在預(yù)先不知道物體運動方向的場合下，只有應(yīng)用三軸加速度傳感器來檢測加速度信號。由于三軸加速度傳感器也是基于重力原理的，因此用三軸加速度傳感器可以實現(xiàn)雙軸正負(fù)90度或雙軸0-360度的傾角，通過校正后期精度要高于雙軸加速度傳感器大于測量角度為60度的情況。三軸加速度傳感器的好處就是在預(yù)先不知道物體運動方向的場合下，只有應(yīng)用三維加速度傳感器來檢測加速度信號。三維加速度傳感器具有體積小和重量輕特點，可以測量空間加速度，能夠全面準(zhǔn)確反映物體的運動性質(zhì)。
美國Dytran的3583BT是一款I(lǐng)EPE三軸加速度傳感器/振動傳感器，壓電式工作原理，靈敏度500mV/g，重27g，頻響低至0.25Hz，信噪比優(yōu)異，集成陶瓷剪切感應(yīng)元件。
The Dytran 3583BT is an IEPE triaxial accelerometer with a high sensitivity of 500 mV/g. Design of the model 3583BT incorporates miniature ceramic shear mode sensing elements, mounted to a single support and packaged in a welded titanium housing for a total weight of 27 grams.
Dytran 3583BT offers a low end frequency response of 0.25 Hz for excellent phase response at low frequencies. Units also have an electrical noise floor of 0.0002 g RMS, which allows for its excellent signal-to-noise ratio.
Units feature an industry standard 4-pin radial connector and stud mount and is epoxy sealed for reliable operation in dirty environments.
特性
1. 500 mV/g sensitivity
2. (±) 10g range
3. .25 to 4,000 Hz frequency range (±10%)
4. 4-pin Dytran designed 1/4-28 radial connector
5. Stud mount
6. Isolated
7. 27 grams
8. Epoxy seal
9. Triaxial
10. IEPE
應(yīng)用
1. Modal and structural analysis
模態(tài)與結(jié)構(gòu)分析
2. Noise, Vibration and Harshness (NVH)
噪音，振動和不平順性
3. Squeak & Rattle
4. Vibration control
振動控制
5. General purpose triaxial vibration measurements
一般用途三軸振動測量
PHYSICAL
Weight, Max. 0.95 oz 27 grams S
Material Titanium Alloy Titanium Alloy
Sensitivity, ±10%
Acceleration Range, ± 10 Gpeak 98.1 m/s2 peak
Frequency Range, ±10% 0.25 to 4000 Hz 0.25 to 4000 Hz
Resonance Frequency >15 kHz >15 kHz
Linearity [3] 1 %F.S. 1 %F.S.
Transverse Sensitivity Max 6 % 6 % -100 -20
Noise floor 0.0002 Grms 0.002 m/s2 rms 0 -10
Spectral Noise 1Hz 30 µGrms/sqr(Hz) 294.3 µm/s2 rms/sqr(Hz) 100 7.5
TEMPERATURE
Spectral Noise 1Hz 30 µ q( ) 294.3 µ q( ) 100 7.5
10Hz 7 µGrms/sqr(Hz) 68.67 µm/s2 rms/sqr(Hz) 200 15
100Hz 9 µGrms/sqr(Hz) 88.29 µm/s2 rms/sqr(Hz) 225 20
1000Hz 1 µGrms/sqr(Hz) 9.81 µm/s2 rms/sqr(Hz) 250 25
10000Hz 1 µGrms/sqr(Hz) 9.81 µm/s2 rms/sqr(Hz)
ELECTRICAL
Supply Current Range [4] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range +18 to +30 VDC +18 to +30 VDC
Output Impedance, Typ. 100 ? 100 ?
Output Bias Voltage 11 to 13 VDC 11 to 13 VDC
1.0 to 2.0 sec 1.0 to 2.0 sec
TEDS Feature IEEE 1451.4 IEEE 1451.4
ENVIRONMENTAL
Shock Max 1000 Gpeak 9810 m/s2
Vibration Max 50 Gpeak 491 m/s2
Operating Temperature -60 to +185 °F -51 to +85 °C
Seal Epoxy Epoxy
Magnetic Sensitivity at 100 Gauss 0.00009 g/Gauss 0.0008829 m/s2/Gauss
Base Strain Sensitivity, Max 0.002 g/µε 0.01962 m/s2/µε
配件
Supplied Accessories: model 6200, mounting stud
Recommended Accessories: model 4114B1 current source power unit
Compatible Cables: 6811A, 6812A, 6824A, 6828A, 6873A, 6925A, 6933A, 6967A, 6997A
訂貨型號
3583BT
3583AT
相關(guān)型號
3053B
3143D
3293A
